Nikon N6006 - Manual (Page 69)

EXPOSURE MODE
Light reaching the film is controlled by the shutter and aper­
ture. The proper combination of shutter and aperture settings
results in the correct exposure. The necessary settings will be
based upon the ISO speed set for the film in use and the
operation of the camera’s exposure control system.
The relationship between aperture and shutter is as follows:
One change in shutter speed either doubles or halves the light
transmitted. For example, 1/500 passes half the light as 1/250
and double the light of 1/1000. The aperture f/8 passes half the
light of f/5.6 and double the light of f/11. If the carect exposure
for a scene is 1/500 at f/8, then we can also select 1/250 at f/11
or 1/1000 at f/5.6 and achieve the same exposure results.
Selecting the exposure control mode means deciding if you
want the shutter speed/aperture to be set automatically or
manually.
The Nikon N6006 offers five modes: four automatic exposure
control modes - Auto Multi-Program (^), Normal-Pro­
grammed (PJ), Shutter-Priority auto (^), and /\perture-Priority
auto (^) - in addition to Manual (rjj) mode.
Each exposure mode has its own advantages.
In Programmed auto exposure mode, as the optimum combi­
nation of shutter speed and aperture is automatically set by the
N6006’s miaocomputer, you can concentrate completely on
picture composition and have greater opportunities to shoot,
without worrying about exposure.
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